Macro unzip 

macro_rules! unzip {
    (let ($($oap:pat_param),* $(,)?) = $($unzip_arg:tt)*) => { ... };
}

Unzips an array of tuples into multiple arrays in const contexts.

It is possible to assign the result of the unzipped expression inside of the macro invocation to avoid the need for crate::destructure.

Examples

use const_tools::unzip;

const fn unzip_pairs<A, B, const N: usize>(arr: [(A, B); N]) -> ([A; N], [B; N]) {
    unzip!(let (a, b) = arr);
    (a, b)
}